T. Umeda

4.1k total citations
131 papers, 2.7k citations indexed

About

T. Umeda is a scholar working on Electrical and Electronic Engineering, Materials Chemistry and Electronic, Optical and Magnetic Materials. According to data from OpenAlex, T. Umeda has authored 131 papers receiving a total of 2.7k indexed citations (citations by other indexed papers that have themselves been cited), including 81 papers in Electrical and Electronic Engineering, 50 papers in Materials Chemistry and 20 papers in Electronic, Optical and Magnetic Materials. Recurrent topics in T. Umeda's work include Semiconductor materials and devices (49 papers), Silicon Carbide Semiconductor Technologies (44 papers) and Thin-Film Transistor Technologies (25 papers). T. Umeda is often cited by papers focused on Semiconductor materials and devices (49 papers), Silicon Carbide Semiconductor Technologies (44 papers) and Thin-Film Transistor Technologies (25 papers). T. Umeda collaborates with scholars based in Japan, Sweden and Hungary. T. Umeda's co-authors include Junichi Isoya, Takeshi Ohshima, N. Morishita, Erik Janzén, Nguyên Tiên Són, W. Kurz, Satoshi Yamasaki, Toshimitsu Okane, Ádám Gali and Kazunobu Tanaka and has published in prestigious journals such as Physical Review Letters, Physical review. B, Condensed matter and Applied Physics Letters.

In The Last Decade

T. Umeda

125 papers receiving 2.6k citations

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author Last Decade Papers Cites
T. Umeda 1.5k 1.1k 832 369 282 131 2.7k
Ming Gong 718 0.5× 1.1k 0.9× 929 1.1× 230 0.6× 106 0.4× 107 2.3k
R. E. Schwall 677 0.5× 486 0.4× 539 0.6× 513 1.4× 795 2.8× 75 2.0k
H. Sugimoto 408 0.3× 723 0.6× 513 0.6× 225 0.6× 359 1.3× 95 1.8k
Bob B. Buckley 1.4k 1.0× 2.1k 1.9× 1.7k 2.0× 211 0.6× 454 1.6× 25 3.4k
Der-San Chuu 1.1k 0.7× 1.5k 1.3× 1.5k 1.8× 183 0.5× 211 0.7× 188 2.8k
John P. Carini 510 0.3× 960 0.9× 1.4k 1.7× 422 1.1× 1.3k 4.5× 48 2.8k
Xian-Geng Zhao 320 0.2× 797 0.7× 1.1k 1.3× 158 0.4× 161 0.6× 125 1.9k
R. J. Matyi 2.0k 1.3× 1.2k 1.1× 1.7k 2.1× 228 0.6× 331 1.2× 134 3.4k
Mamoru Matsuo 538 0.4× 509 0.5× 1.8k 2.1× 385 1.0× 555 2.0× 122 2.4k
P. J. H. Denteneer 659 0.4× 596 0.5× 1.2k 1.4× 123 0.3× 566 2.0× 45 2.0k

Countries citing papers authored by T. Umeda

Since Specialization
Citations

This map shows the geographic impact of T. Umeda's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by T. Umeda with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites T. Umeda more than expected).

Fields of papers citing papers by T. Umeda

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by T. Umeda. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by T. Umeda. The network helps show where T. Umeda may publish in the future.

Co-authorship network of co-authors of T. Umeda

This figure shows the co-authorship network connecting the top 25 collaborators of T. Umeda. A scholar is included among the top collaborators of T. Umeda based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with T. Umeda. T. Umeda is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Kano, Emi, Kenji Shiraishi, Atsushi Oshiyama, et al.. (2025). Structure of the very first atomic layer of Ga oxide on GaN at GaN oxidation front. Applied Physics Letters. 127(3).
2.
Zhang, Yongjie, T. Umeda, Satoshi Morooka, et al.. (2024). Pearlite Growth Kinetics in Fe-C-Mn Eutectoid Steels: Quantitative Evaluation of Energy Dissipation at Pearlite Growth Front Via Experimental Approaches. Metallurgical and Materials Transactions A. 55(10). 3921–3936.
3.
Sometani, Mitsuru, et al.. (2023). Energy levels of carbon dangling-bond center (PbC center) at 4H-SiC(0001)/SiO2 interface. APL Materials. 11(11). 4 indexed citations
4.
Umeda, T., et al.. (2023). How does hydrogen transform into shallow donors in silicon?. Physical review. B.. 108(23).
5.
Umeda, T., Kenji Watanabe, Hitoshi Sumiya, et al.. (2022). Negatively charged boron vacancy center in diamond. Physical review. B.. 105(16). 6 indexed citations
6.
Umeda, T., Y. Nakano, Takafumi Okuda, et al.. (2020). Electron-spin-resonance and electrically detected-magnetic-resonance characterization on PbC center in various 4H-SiC(0001)/SiO2 interfaces. Journal of Applied Physics. 127(14). 24 indexed citations
7.
Umeda, T., et al.. (2019). Electrically detected-magnetic-resonance identifications of defects at 4H-SiC(0001¯)/SiO2 interfaces with wet oxidation. Applied Physics Letters. 115(15). 10 indexed citations
8.
Grèzes, Cécile, Yuimaru Kubo, Brian Julsgaard, et al.. (2016). Towards a spin-ensemble quantum memory for superconducting qubits. Comptes Rendus Physique. 17(7). 693–704. 30 indexed citations
9.
Umeda, T., Mitsuo Okamoto, Yoshihiro Sato, et al.. (2014). C-Face Interface Defects in 4H-SiC MOSFETs Studied by Electrically Detected Magnetic Resonance. Materials science forum. 778-780. 414–417. 2 indexed citations
10.
Jahnke, Kay D., Boris Naydenov, Tokuyuki Teraji, et al.. (2012). Long coherence time of spin qubits in 12C enriched polycrystalline chemical vapor deposition diamond. Terrestrial Environment Research Center (University of Tsukuba). 48 indexed citations
11.
Umeda, T., Yoshihiro Sato, Ryoji Kosugi, et al.. (2012). SiC MOS Interface States: Similarity and Dissimilarity from Silicon. ECS Meeting Abstracts. MA2012-02(31). 2620–2620. 1 indexed citations
12.
Són, Nguyên Tiên, Xuan Thang Trinh, Lars Løvlie, et al.. (2012). Negative-USystem of Carbon Vacancy in4H-SiC. Physical Review Letters. 109(18). 187603–187603. 228 indexed citations
13.
Kubo, Yuimaru, Cécile Grèzes, Andreas Dewes, et al.. (2011). Hybrid Quantum Circuit with a Superconducting Qubit Coupled to a Spin Ensemble. Physical Review Letters. 107(22). 220501–220501. 282 indexed citations
14.
Ishida, Masaya, Tetsuhiko Isobe, Satoru Kuze, et al.. (2010). First-principles study of blue silicate phosphors. Journal of Physics Condensed Matter. 22(38). 384202–384202. 4 indexed citations
15.
Umeda, T., Nguyên Tiên Són, Junichi Isoya, et al.. (2006). Identification of the Carbon Antisite-Vacancy Pair in4H-SiC. Physical Review Letters. 96(14). 145501–145501. 66 indexed citations
16.
Són, Nguyên Tiên, Patrick Carlsson, Jawad Ul‐Hassan, et al.. (2006). Divacancy in 4H-SiC. Physical Review Letters. 96(5). 55501–55501. 166 indexed citations
17.
Umeda, T., Akio Toda, & Yasunori Mochizuki. (2004). Measurement of process-induced defects in Si sub-micron devices by combination of EDMR and TEM. The European Physical Journal Applied Physics. 27(1-3). 13–19. 12 indexed citations
18.
Umeda, T., et al.. (2001). Charge-trapping defects in Cat-CVD silicon nitride films. Thin Solid Films. 395(1-2). 266–269. 11 indexed citations
19.
Umeda, T., Masayasu Nishizawa, Tetsuji Yasuda, et al.. (2001). Electron Spin Resonance Observation of the Si(111)-(7×7)Surface and Its Oxidation Process. Physical Review Letters. 86(6). 1054–1057. 21 indexed citations
20.
Ikuta, Kazuyuki, et al.. (1997). Growth of amorphous-layer-free microcrystalline silicon on insulating glass substrates by plasma-enhanced chemical vapor deposition. Applied Physics Letters. 71(11). 1534–1536. 44 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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